<template>
    <van-form @submit="submitForm" @failed="onFailed" ref="ruleFormRef" :model="form">
        <van-cell-group>
            <van-field
                v-model="form.username"
                label="账号"
                placeholder="请输入用户名"
                name="username"
                clearable
                :rules="usernameRules"
            ></van-field>
        </van-cell-group>
        <van-cell-group>
            <van-field
                v-model="form.password"
                label="密码"
                placeholder="请输入密码"
                name="password"
                clearable
                type="password"
                :rules="passwordRules"
            ></van-field>
        </van-cell-group>
        <van-cell-group>
            <van-button block round type="primary" native-type="submit">登录</van-button>
        </van-cell-group>
    </van-form>
</template>

<script setup>
import { ref, reactive } from 'vue';
import { login, getUser } from '../api';
import useToken from '../stores/token';
import useUser from '../stores/user';
import { useRouter } from 'vue-router';

const { updateToken } = useToken()
const { updateUser } = useUser()
const router = useRouter()

const form = reactive({
    username: 'demo1',
    password: '123456'
})

const ruleFormRef = ref()

//定义验证规则
const usernameRules = ref([
    { required: true, message: '用户名不能为空'},
    { pattern: /^\w{3,16}$/, message: '用户名长度为3-16个字符'}
])
const passwordRules = ref([
    { required: true, message: '密码不能为空'},
    { pattern: /^\w{6,24}$/, message: '密码长度为6-24个字符'}
])

//表单提交函数
const submitForm = async values => {
    const data = await login(values)
    if (data) {
        updateToken(data.token)
        const user = await getUser()
        updateUser({
            isLogin: true,
            username: user.username,
            avatar: user.avatar
        })
        router.push({name: 'user'})
    }
}

const onFailed = errorInfo => {
    console.log('failed', errorInfo)
}

</script>

<style lang="less" scoped>
button {
    position: fixed;
    top: 200px;
}
</style>